You are given a sentence in English. Your job is to translate the English sentence into Japanese.

We did it first on these rich, developed countries, and then as a separate test bed, we repeated it all on the 50 American states — asking just the same question: do the more unequal states do worse on all these kinds of measures?
初めに裕福な先進国を調査した後次に別の検定対象としてアメリカの全50州で同じ分析をしました全く同じ質問です「格差の大きい州だとこれらの比較基準は下がるか ？ 」